Carbamazepine and Metabolite Total/Free/Bound : 7933

Test Code

CARBFT or 7933

Alias/See Also

Tegretol

CPT Codes
80156, 80157

Includes

Carbamzaepine Panel includes: Total, Total metabolite, Free, Free metabolite, Bound, and Bound metabolite.

Instructions

Plain red or Lavender top tube.

Transport Container

Centrifuge plain red or lavender top tube and transfer 2 mL serum or plasma into a standard transport tube. (Min: 1.7 mL)

Transport Temperature

Refrigerated.

Specimen Stability

After separation from cells: Ambient: 14 days; Refrigerated: 14 days; Frozen: 10 months

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Serum separator tubes (SST).

Methodology
Chromatography/Mass Spectrometry

Setup Schedule

Monday - Friday

Report Available

2-5 days (From receipt at performing laboratory)

Reference Range

By report.

Clinical Significance

Carbamazepine and its metabolite (10, 11-carbamazepine epoxide) are widely used for control of generalized tonic-clonic, partial-onset, complex and mixed seizure disorders. The metabolism of carbamazepine in epileptic patients has several different pathways that can be altered when the patient is co-medicated with other anticonvulsants and, therefore, it's therapeutic level should be monitored along with its metabolite in their free and protein bound states.

Performing Laboratory
Quest Diagnostics

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.